Coccygeus Flashcards

1
Q

Coccygeus

A
  1. Lies behind Levator ani posterior border on sacrospinous ligament pelvic surface
  2. Represents muscles dorsal degenerated part
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2
Q

Origin

A

Ischial spine

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3
Q

Insertion

A

Last sacral piece and 1st coccygeal piece

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4
Q

Nerve supply

A

S4 and S5

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5
Q

Action

A
  1. Forms pelvic diaphragm posterior part
  2. Supports coccyx during delivery & defecation
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